Field experiences with batteries in photovoltaic systems

Abstract

Since 1978-1983 many photovoltaic systems for telecommunication purposes, village and house electrification, water treatment etc. have been installed. 15 pilot-plant funded by the European Community are in operation since 1982/83. First results will be given regarding the successfull operation, the maintenance and the lifetime of the batteries used in these installations. Design criteria will be discussed for the selection of battery types. Also recommendations will be given for proper sizing in respect of the optium reliability of the batteries. The wide range of applications using photovoltaic power supply require detailed knowledge about the significant characteristics of the energy storage systems. The report shall give a surview which influences must be observed, to receive long operation periods of PV-systems.